Home / 124,368.40-171,607.98-76,618.90

Finding the Fourth Proportional to 124,368.40, 171,607.98 and 76,618.90

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Solution

The fourth proportional to 124,368.40, 171,607.98 and 76,618.90 is: 105,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,368.40 : 171,607.98 = 76,618.90 : x
  2. Step 2: Convert to fraction form
    124,368.40/171,607.98 = 76,618.90/x
  3. Step 3: Cross multiply
    124,368.40x = 171,607.98 × 76,618.90
  4. Step 4: Simplify right side
    124,368.40x = 13,148,414,658.82
  5. Step 5: Solve for x
    x = 13,148,414,658.82/124,368.40
  6. Step 6: Final answer
    x = 105,721.51

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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.