Home / 138,915.60-191,703.06-75,253.32

Finding the Fourth Proportional to 138,915.60, 191,703.06 and 75,253.32

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Solution

The fourth proportional to 138,915.60, 191,703.06 and 75,253.32 is: 103,849.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,915.60 : 191,703.06 = 75,253.32 : x
  2. Step 2: Convert to fraction form
    138,915.60/191,703.06 = 75,253.32/x
  3. Step 3: Cross multiply
    138,915.60x = 191,703.06 × 75,253.32
  4. Step 4: Simplify right side
    138,915.60x = 14,426,291,719.16
  5. Step 5: Solve for x
    x = 14,426,291,719.16/138,915.60
  6. Step 6: Final answer
    x = 103,849.33

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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.