Home / 176,780.63-243,962.70-100,302.91

Finding the Fourth Proportional to 176,780.63, 243,962.70 and 100,302.91

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Solution

The fourth proportional to 176,780.63, 243,962.70 and 100,302.91 is: 138,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,780.63 : 243,962.70 = 100,302.91 : x
  2. Step 2: Convert to fraction form
    176,780.63/243,962.70 = 100,302.91/x
  3. Step 3: Cross multiply
    176,780.63x = 243,962.70 × 100,302.91
  4. Step 4: Simplify right side
    176,780.63x = 24,470,169,691.91
  5. Step 5: Solve for x
    x = 24,470,169,691.91/176,780.63
  6. Step 6: Final answer
    x = 138,421.10

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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.