Home / 131,281.02-181,159.83-77,553.18

Finding the Fourth Proportional to 131,281.02, 181,159.83 and 77,553.18

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Solution

The fourth proportional to 131,281.02, 181,159.83 and 77,553.18 is: 107,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,281.02 : 181,159.83 = 77,553.18 : x
  2. Step 2: Convert to fraction form
    131,281.02/181,159.83 = 77,553.18/x
  3. Step 3: Cross multiply
    131,281.02x = 181,159.83 × 77,553.18
  4. Step 4: Simplify right side
    131,281.02x = 14,049,520,904.76
  5. Step 5: Solve for x
    x = 14,049,520,904.76/131,281.02
  6. Step 6: Final answer
    x = 107,018.68

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1.5x scale

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.