Home / 97,715.20-146,572.80-96,678.40

Finding the Fourth Proportional to 97,715.20, 146,572.80 and 96,678.40

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Solution

The fourth proportional to 97,715.20, 146,572.80 and 96,678.40 is: 145,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,715.20 : 146,572.80 = 96,678.40 : x
  2. Step 2: Convert to fraction form
    97,715.20/146,572.80 = 96,678.40/x
  3. Step 3: Cross multiply
    97,715.20x = 146,572.80 × 96,678.40
  4. Step 4: Simplify right side
    97,715.20x = 14,170,423,787.52
  5. Step 5: Solve for x
    x = 14,170,423,787.52/97,715.20
  6. Step 6: Final answer
    x = 145,017.60

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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.