Home / 118,357.76-163,332.88-64,642.80

Finding the Fourth Proportional to 118,357.76, 163,332.88 and 64,642.80

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Solution

The fourth proportional to 118,357.76, 163,332.88 and 64,642.80 is: 89,206.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,357.76 : 163,332.88 = 64,642.80 : x
  2. Step 2: Convert to fraction form
    118,357.76/163,332.88 = 64,642.80/x
  3. Step 3: Cross multiply
    118,357.76x = 163,332.88 × 64,642.80
  4. Step 4: Simplify right side
    118,357.76x = 10,558,294,695.26
  5. Step 5: Solve for x
    x = 10,558,294,695.26/118,357.76
  6. Step 6: Final answer
    x = 89,206.61

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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.