Home / 104,988.30-157,547.75-42,658.80

Finding the Fourth Proportional to 104,988.30, 157,547.75 and 42,658.80

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Solution

The fourth proportional to 104,988.30, 157,547.75 and 42,658.80 is: 64,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,988.30 : 157,547.75 = 42,658.80 : x
  2. Step 2: Convert to fraction form
    104,988.30/157,547.75 = 42,658.80/x
  3. Step 3: Cross multiply
    104,988.30x = 157,547.75 × 42,658.80
  4. Step 4: Simplify right side
    104,988.30x = 6,720,797,957.70
  5. Step 5: Solve for x
    x = 6,720,797,957.70/104,988.30
  6. Step 6: Final answer
    x = 64,014.73

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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.