Home / 118,317.85-163,285.25-64,607.85

Finding the Fourth Proportional to 118,317.85, 163,285.25 and 64,607.85

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Solution

The fourth proportional to 118,317.85, 163,285.25 and 64,607.85 is: 89,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,317.85 : 163,285.25 = 64,607.85 : x
  2. Step 2: Convert to fraction form
    118,317.85/163,285.25 = 64,607.85/x
  3. Step 3: Cross multiply
    118,317.85x = 163,285.25 × 64,607.85
  4. Step 4: Simplify right side
    118,317.85x = 10,549,508,616.17
  5. Step 5: Solve for x
    x = 10,549,508,616.17/118,317.85
  6. Step 6: Final answer
    x = 89,162.45

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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.