Home / 107,719.46-148,631.10-65,253.32

Finding the Fourth Proportional to 107,719.46, 148,631.10 and 65,253.32

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Solution

The fourth proportional to 107,719.46, 148,631.10 and 65,253.32 is: 90,036.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,719.46 : 148,631.10 = 65,253.32 : x
  2. Step 2: Convert to fraction form
    107,719.46/148,631.10 = 65,253.32/x
  3. Step 3: Cross multiply
    107,719.46x = 148,631.10 × 65,253.32
  4. Step 4: Simplify right side
    107,719.46x = 9,698,672,730.25
  5. Step 5: Solve for x
    x = 9,698,672,730.25/107,719.46
  6. Step 6: Final answer
    x = 90,036.40

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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.