Home / 101,748.18-140,417.02-56,423.12

Finding the Fourth Proportional to 101,748.18, 140,417.02 and 56,423.12

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Solution

The fourth proportional to 101,748.18, 140,417.02 and 56,423.12 is: 77,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,748.18 : 140,417.02 = 56,423.12 : x
  2. Step 2: Convert to fraction form
    101,748.18/140,417.02 = 56,423.12/x
  3. Step 3: Cross multiply
    101,748.18x = 140,417.02 × 56,423.12
  4. Step 4: Simplify right side
    101,748.18x = 7,922,766,369.50
  5. Step 5: Solve for x
    x = 7,922,766,369.50/101,748.18
  6. Step 6: Final answer
    x = 77,866.42

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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.