Home / 123,603.04-170,573.50-72,617.88

Finding the Fourth Proportional to 123,603.04, 170,573.50 and 72,617.88

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Solution

The fourth proportional to 123,603.04, 170,573.50 and 72,617.88 is: 100,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,603.04 : 170,573.50 = 72,617.88 : x
  2. Step 2: Convert to fraction form
    123,603.04/170,573.50 = 72,617.88/x
  3. Step 3: Cross multiply
    123,603.04x = 170,573.50 × 72,617.88
  4. Step 4: Simplify right side
    123,603.04x = 12,386,685,954.18
  5. Step 5: Solve for x
    x = 12,386,685,954.18/123,603.04
  6. Step 6: Final answer
    x = 100,213.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.