Home / 103,031.52-142,187.04-57,711.44

Finding the Fourth Proportional to 103,031.52, 142,187.04 and 57,711.44

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Solution

The fourth proportional to 103,031.52, 142,187.04 and 57,711.44 is: 79,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,031.52 : 142,187.04 = 57,711.44 : x
  2. Step 2: Convert to fraction form
    103,031.52/142,187.04 = 57,711.44/x
  3. Step 3: Cross multiply
    103,031.52x = 142,187.04 × 57,711.44
  4. Step 4: Simplify right side
    103,031.52x = 8,205,818,827.74
  5. Step 5: Solve for x
    x = 8,205,818,827.74/103,031.52
  6. Step 6: Final answer
    x = 79,643.77

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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.