Home / 153,126.28-211,295.46-89,417.80

Finding the Fourth Proportional to 153,126.28, 211,295.46 and 89,417.80

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Solution

The fourth proportional to 153,126.28, 211,295.46 and 89,417.80 is: 123,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,126.28 : 211,295.46 = 89,417.80 : x
  2. Step 2: Convert to fraction form
    153,126.28/211,295.46 = 89,417.80/x
  3. Step 3: Cross multiply
    153,126.28x = 211,295.46 × 89,417.80
  4. Step 4: Simplify right side
    153,126.28x = 18,893,575,183.19
  5. Step 5: Solve for x
    x = 18,893,575,183.19/153,126.28
  6. Step 6: Final answer
    x = 123,385.58

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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.