Home / 425,235.02-637,836.57-105,387.94

Finding the Fourth Proportional to 425,235.02, 637,836.57 and 105,387.94

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Solution

The fourth proportional to 425,235.02, 637,836.57 and 105,387.94 is: 158,077.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,235.02 : 637,836.57 = 105,387.94 : x
  2. Step 2: Convert to fraction form
    425,235.02/637,836.57 = 105,387.94/x
  3. Step 3: Cross multiply
    425,235.02x = 637,836.57 × 105,387.94
  4. Step 4: Simplify right side
    425,235.02x = 67,220,278,979.78
  5. Step 5: Solve for x
    x = 67,220,278,979.78/425,235.02
  6. Step 6: Final answer
    x = 158,077.95

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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.