Home / 101,743.52-140,402.16-56,423.36

Finding the Fourth Proportional to 101,743.52, 140,402.16 and 56,423.36

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Solution

The fourth proportional to 101,743.52, 140,402.16 and 56,423.36 is: 77,862.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,743.52 : 140,402.16 = 56,423.36 : x
  2. Step 2: Convert to fraction form
    101,743.52/140,402.16 = 56,423.36/x
  3. Step 3: Cross multiply
    101,743.52x = 140,402.16 × 56,423.36
  4. Step 4: Simplify right side
    101,743.52x = 7,921,961,618.46
  5. Step 5: Solve for x
    x = 7,921,961,618.46/101,743.52
  6. Step 6: Final answer
    x = 77,862.08

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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.