Home / 102,088.92-140,888.79-56,767.26

Finding the Fourth Proportional to 102,088.92, 140,888.79 and 56,767.26

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Solution

The fourth proportional to 102,088.92, 140,888.79 and 56,767.26 is: 78,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,088.92 : 140,888.79 = 56,767.26 : x
  2. Step 2: Convert to fraction form
    102,088.92/140,888.79 = 56,767.26/x
  3. Step 3: Cross multiply
    102,088.92x = 140,888.79 × 56,767.26
  4. Step 4: Simplify right side
    102,088.92x = 7,997,870,573.02
  5. Step 5: Solve for x
    x = 7,997,870,573.02/102,088.92
  6. Step 6: Final answer
    x = 78,342.20

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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.