Home / 102,020.01-140,787.08-56,080.72

Finding the Fourth Proportional to 102,020.01, 140,787.08 and 56,080.72

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Solution

The fourth proportional to 102,020.01, 140,787.08 and 56,080.72 is: 77,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.01 : 140,787.08 = 56,080.72 : x
  2. Step 2: Convert to fraction form
    102,020.01/140,787.08 = 56,080.72/x
  3. Step 3: Cross multiply
    102,020.01x = 140,787.08 × 56,080.72
  4. Step 4: Simplify right side
    102,020.01x = 7,895,440,918.98
  5. Step 5: Solve for x
    x = 7,895,440,918.98/102,020.01
  6. Step 6: Final answer
    x = 77,391.10

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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.