Home / 144,538.02-216,899.57-78,024.47

Finding the Fourth Proportional to 144,538.02, 216,899.57 and 78,024.47

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Solution

The fourth proportional to 144,538.02, 216,899.57 and 78,024.47 is: 117,086.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,538.02 : 216,899.57 = 78,024.47 : x
  2. Step 2: Convert to fraction form
    144,538.02/216,899.57 = 78,024.47/x
  3. Step 3: Cross multiply
    144,538.02x = 216,899.57 × 78,024.47
  4. Step 4: Simplify right side
    144,538.02x = 16,923,473,103.04
  5. Step 5: Solve for x
    x = 16,923,473,103.04/144,538.02
  6. Step 6: Final answer
    x = 117,086.65

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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.