Home / 131,275,392.52-181,159,981.88-72,537,543.88

Finding the Fourth Proportional to 131,275,392.52, 181,159,981.88 and 72,537,543.88

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Solution

The fourth proportional to 131,275,392.52, 181,159,981.88 and 72,537,543.88 is: 100,101,777.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,275,392.52 : 181,159,981.88 = 72,537,543.88 : x
  2. Step 2: Convert to fraction form
    131,275,392.52/181,159,981.88 = 72,537,543.88/x
  3. Step 3: Cross multiply
    131,275,392.52x = 181,159,981.88 × 72,537,543.88
  4. Step 4: Simplify right side
    131,275,392.52x = 13,140,900,134,920,504
  5. Step 5: Solve for x
    x = 13,140,900,134,920,504/131,275,392.52
  6. Step 6: Final answer
    x = 100,101,777.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.