Home / 99,031.60-148,547.40-92,470.60

Finding the Fourth Proportional to 99,031.60, 148,547.40 and 92,470.60

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Solution

The fourth proportional to 99,031.60, 148,547.40 and 92,470.60 is: 138,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,031.60 : 148,547.40 = 92,470.60 : x
  2. Step 2: Convert to fraction form
    99,031.60/148,547.40 = 92,470.60/x
  3. Step 3: Cross multiply
    99,031.60x = 148,547.40 × 92,470.60
  4. Step 4: Simplify right side
    99,031.60x = 13,736,267,206.44
  5. Step 5: Solve for x
    x = 13,736,267,206.44/99,031.60
  6. Step 6: Final answer
    x = 138,705.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.