Home / 247,123.47-341,026.68-139,689.72

Finding the Fourth Proportional to 247,123.47, 341,026.68 and 139,689.72

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Solution

The fourth proportional to 247,123.47, 341,026.68 and 139,689.72 is: 192,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,123.47 : 341,026.68 = 139,689.72 : x
  2. Step 2: Convert to fraction form
    247,123.47/341,026.68 = 139,689.72/x
  3. Step 3: Cross multiply
    247,123.47x = 341,026.68 × 139,689.72
  4. Step 4: Simplify right side
    247,123.47x = 47,637,921,441.73
  5. Step 5: Solve for x
    x = 47,637,921,441.73/247,123.47
  6. Step 6: Final answer
    x = 192,769.72

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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.