Home / 151,516.01-209,088.24-83,531.40

Finding the Fourth Proportional to 151,516.01, 209,088.24 and 83,531.40

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Solution

The fourth proportional to 151,516.01, 209,088.24 and 83,531.40 is: 115,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,516.01 : 209,088.24 = 83,531.40 : x
  2. Step 2: Convert to fraction form
    151,516.01/209,088.24 = 83,531.40/x
  3. Step 3: Cross multiply
    151,516.01x = 209,088.24 × 83,531.40
  4. Step 4: Simplify right side
    151,516.01x = 17,465,432,313.41
  5. Step 5: Solve for x
    x = 17,465,432,313.41/151,516.01
  6. Step 6: Final answer
    x = 115,271.20

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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.