Home / 109,677.28-151,353.48-61,927.80

Finding the Fourth Proportional to 109,677.28, 151,353.48 and 61,927.80

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Solution

The fourth proportional to 109,677.28, 151,353.48 and 61,927.80 is: 85,459.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,677.28 : 151,353.48 = 61,927.80 : x
  2. Step 2: Convert to fraction form
    109,677.28/151,353.48 = 61,927.80/x
  3. Step 3: Cross multiply
    109,677.28x = 151,353.48 × 61,927.80
  4. Step 4: Simplify right side
    109,677.28x = 9,372,988,038.74
  5. Step 5: Solve for x
    x = 9,372,988,038.74/109,677.28
  6. Step 6: Final answer
    x = 85,459.71

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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.