Home / 122,675.72-169,267.47-71,678.59

Finding the Fourth Proportional to 122,675.72, 169,267.47 and 71,678.59

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Solution

The fourth proportional to 122,675.72, 169,267.47 and 71,678.59 is: 98,901.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,675.72 : 169,267.47 = 71,678.59 : x
  2. Step 2: Convert to fraction form
    122,675.72/169,267.47 = 71,678.59/x
  3. Step 3: Cross multiply
    122,675.72x = 169,267.47 × 71,678.59
  4. Step 4: Simplify right side
    122,675.72x = 12,132,854,209.39
  5. Step 5: Solve for x
    x = 12,132,854,209.39/122,675.72
  6. Step 6: Final answer
    x = 98,901.83

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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.