Home / 102,145.89-140,962.41-56,206.14

Finding the Fourth Proportional to 102,145.89, 140,962.41 and 56,206.14

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Solution

The fourth proportional to 102,145.89, 140,962.41 and 56,206.14 is: 77,565.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,145.89 : 140,962.41 = 56,206.14 : x
  2. Step 2: Convert to fraction form
    102,145.89/140,962.41 = 56,206.14/x
  3. Step 3: Cross multiply
    102,145.89x = 140,962.41 × 56,206.14
  4. Step 4: Simplify right side
    102,145.89x = 7,922,952,951.20
  5. Step 5: Solve for x
    x = 7,922,952,951.20/102,145.89
  6. Step 6: Final answer
    x = 77,565.07

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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.