Home / 103,920.17-143,397.65-58,595.45

Finding the Fourth Proportional to 103,920.17, 143,397.65 and 58,595.45

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Solution

The fourth proportional to 103,920.17, 143,397.65 and 58,595.45 is: 80,854.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,920.17 : 143,397.65 = 58,595.45 : x
  2. Step 2: Convert to fraction form
    103,920.17/143,397.65 = 58,595.45/x
  3. Step 3: Cross multiply
    103,920.17x = 143,397.65 × 58,595.45
  4. Step 4: Simplify right side
    103,920.17x = 8,402,450,604.55
  5. Step 5: Solve for x
    x = 8,402,450,604.55/103,920.17
  6. Step 6: Final answer
    x = 80,854.86

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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.