Home / 109,700.20-164,532.70-39,543.40

Finding the Fourth Proportional to 109,700.20, 164,532.70 and 39,543.40

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Solution

The fourth proportional to 109,700.20, 164,532.70 and 39,543.40 is: 59,308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,700.20 : 164,532.70 = 39,543.40 : x
  2. Step 2: Convert to fraction form
    109,700.20/164,532.70 = 39,543.40/x
  3. Step 3: Cross multiply
    109,700.20x = 164,532.70 × 39,543.40
  4. Step 4: Simplify right side
    109,700.20x = 6,506,182,369.18
  5. Step 5: Solve for x
    x = 6,506,182,369.18/109,700.20
  6. Step 6: Final answer
    x = 59,308.76

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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.