Home / 102,089.12-153,133.63-31,011.48

Finding the Fourth Proportional to 102,089.12, 153,133.63 and 31,011.48

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Solution

The fourth proportional to 102,089.12, 153,133.63 and 31,011.48 is: 46,517.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,089.12 : 153,133.63 = 31,011.48 : x
  2. Step 2: Convert to fraction form
    102,089.12/153,133.63 = 31,011.48/x
  3. Step 3: Cross multiply
    102,089.12x = 153,133.63 × 31,011.48
  4. Step 4: Simplify right side
    102,089.12x = 4,748,901,031.67
  5. Step 5: Solve for x
    x = 4,748,901,031.67/102,089.12
  6. Step 6: Final answer
    x = 46,517.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.