Home / 102,117.16-140,934.34-57,405.16

Finding the Fourth Proportional to 102,117.16, 140,934.34 and 57,405.16

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Solution

The fourth proportional to 102,117.16, 140,934.34 and 57,405.16 is: 79,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,117.16 : 140,934.34 = 57,405.16 : x
  2. Step 2: Convert to fraction form
    102,117.16/140,934.34 = 57,405.16/x
  3. Step 3: Cross multiply
    102,117.16x = 140,934.34 × 57,405.16
  4. Step 4: Simplify right side
    102,117.16x = 8,090,358,337.19
  5. Step 5: Solve for x
    x = 8,090,358,337.19/102,117.16
  6. Step 6: Final answer
    x = 79,226.24

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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.