Home / 113,829.17-157,089.36-65,446.77

Finding the Fourth Proportional to 113,829.17, 157,089.36 and 65,446.77

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Solution

The fourth proportional to 113,829.17, 157,089.36 and 65,446.77 is: 90,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,829.17 : 157,089.36 = 65,446.77 : x
  2. Step 2: Convert to fraction form
    113,829.17/157,089.36 = 65,446.77/x
  3. Step 3: Cross multiply
    113,829.17x = 157,089.36 × 65,446.77
  4. Step 4: Simplify right side
    113,829.17x = 10,280,991,734.94
  5. Step 5: Solve for x
    x = 10,280,991,734.94/113,829.17
  6. Step 6: Final answer
    x = 90,319.48

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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.