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Finding the Fourth Proportional to 153,370.94, 211,632.88 and 88,839.36

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Solution

The fourth proportional to 153,370.94, 211,632.88 and 88,839.36 is: 122,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,370.94 : 211,632.88 = 88,839.36 : x
  2. Step 2: Convert to fraction form
    153,370.94/211,632.88 = 88,839.36/x
  3. Step 3: Cross multiply
    153,370.94x = 211,632.88 × 88,839.36
  4. Step 4: Simplify right side
    153,370.94x = 18,801,329,614.16
  5. Step 5: Solve for x
    x = 18,801,329,614.16/153,370.94
  6. Step 6: Final answer
    x = 122,587.30

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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.