Home / 99,018.13-136,641.21-53,695.28

Finding the Fourth Proportional to 99,018.13, 136,641.21 and 53,695.28

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Solution

The fourth proportional to 99,018.13, 136,641.21 and 53,695.28 is: 74,097.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,018.13 : 136,641.21 = 53,695.28 : x
  2. Step 2: Convert to fraction form
    99,018.13/136,641.21 = 53,695.28/x
  3. Step 3: Cross multiply
    99,018.13x = 136,641.21 × 53,695.28
  4. Step 4: Simplify right side
    99,018.13x = 7,336,988,030.49
  5. Step 5: Solve for x
    x = 7,336,988,030.49/99,018.13
  6. Step 6: Final answer
    x = 74,097.42

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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.