Home / 122,807.90-169,461.15-69,111.38

Finding the Fourth Proportional to 122,807.90, 169,461.15 and 69,111.38

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Solution

The fourth proportional to 122,807.90, 169,461.15 and 69,111.38 is: 95,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,807.90 : 169,461.15 = 69,111.38 : x
  2. Step 2: Convert to fraction form
    122,807.90/169,461.15 = 69,111.38/x
  3. Step 3: Cross multiply
    122,807.90x = 169,461.15 × 69,111.38
  4. Step 4: Simplify right side
    122,807.90x = 11,711,693,085.58
  5. Step 5: Solve for x
    x = 11,711,693,085.58/122,807.90
  6. Step 6: Final answer
    x = 95,365.96

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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.