Home / 151,512.04-209,088.08-83,531.72

Finding the Fourth Proportional to 151,512.04, 209,088.08 and 83,531.72

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Solution

The fourth proportional to 151,512.04, 209,088.08 and 83,531.72 is: 115,274.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,512.04 : 209,088.08 = 83,531.72 : x
  2. Step 2: Convert to fraction form
    151,512.04/209,088.08 = 83,531.72/x
  3. Step 3: Cross multiply
    151,512.04x = 209,088.08 × 83,531.72
  4. Step 4: Simplify right side
    151,512.04x = 17,465,486,953.90
  5. Step 5: Solve for x
    x = 17,465,486,953.90/151,512.04
  6. Step 6: Final answer
    x = 115,274.58

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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.