Home / 153,253.29-211,470.96-85,254.19

Finding the Fourth Proportional to 153,253.29, 211,470.96 and 85,254.19

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Solution

The fourth proportional to 153,253.29, 211,470.96 and 85,254.19 is: 117,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,253.29 : 211,470.96 = 85,254.19 : x
  2. Step 2: Convert to fraction form
    153,253.29/211,470.96 = 85,254.19/x
  3. Step 3: Cross multiply
    153,253.29x = 211,470.96 × 85,254.19
  4. Step 4: Simplify right side
    153,253.29x = 18,028,785,403.32
  5. Step 5: Solve for x
    x = 18,028,785,403.32/153,253.29
  6. Step 6: Final answer
    x = 117,640.45

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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.