Home / 99,298.80-148,948.20-57,308.40

Finding the Fourth Proportional to 99,298.80, 148,948.20 and 57,308.40

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Solution

The fourth proportional to 99,298.80, 148,948.20 and 57,308.40 is: 85,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,298.80 : 148,948.20 = 57,308.40 : x
  2. Step 2: Convert to fraction form
    99,298.80/148,948.20 = 57,308.40/x
  3. Step 3: Cross multiply
    99,298.80x = 148,948.20 × 57,308.40
  4. Step 4: Simplify right side
    99,298.80x = 8,535,983,024.88
  5. Step 5: Solve for x
    x = 8,535,983,024.88/99,298.80
  6. Step 6: Final answer
    x = 85,962.60

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1.5x scale

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.