Home / 151,512.07-209,088.00-83,531.45

Finding the Fourth Proportional to 151,512.07, 209,088.00 and 83,531.45

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Solution

The fourth proportional to 151,512.07, 209,088.00 and 83,531.45 is: 115,274.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,512.07 : 209,088.00 = 83,531.45 : x
  2. Step 2: Convert to fraction form
    151,512.07/209,088.00 = 83,531.45/x
  3. Step 3: Cross multiply
    151,512.07x = 209,088.00 × 83,531.45
  4. Step 4: Simplify right side
    151,512.07x = 17,465,423,869.48
  5. Step 5: Solve for x
    x = 17,465,423,869.48/151,512.07
  6. Step 6: Final answer
    x = 115,274.15

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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.