Home / 153,504.04-211,832.36-85,520.92

Finding the Fourth Proportional to 153,504.04, 211,832.36 and 85,520.92

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Solution

The fourth proportional to 153,504.04, 211,832.36 and 85,520.92 is: 118,017.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,504.04 : 211,832.36 = 85,520.92 : x
  2. Step 2: Convert to fraction form
    153,504.04/211,832.36 = 85,520.92/x
  3. Step 3: Cross multiply
    153,504.04x = 211,832.36 × 85,520.92
  4. Step 4: Simplify right side
    153,504.04x = 18,116,098,312.97
  5. Step 5: Solve for x
    x = 18,116,098,312.97/153,504.04
  6. Step 6: Final answer
    x = 118,017.08

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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.