Home / 99,129.47-136,798.70-53,807.45

Finding the Fourth Proportional to 99,129.47, 136,798.70 and 53,807.45

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Solution

The fourth proportional to 99,129.47, 136,798.70 and 53,807.45 is: 74,254.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,129.47 : 136,798.70 = 53,807.45 : x
  2. Step 2: Convert to fraction form
    99,129.47/136,798.70 = 53,807.45/x
  3. Step 3: Cross multiply
    99,129.47x = 136,798.70 × 53,807.45
  4. Step 4: Simplify right side
    99,129.47x = 7,360,788,257.28
  5. Step 5: Solve for x
    x = 7,360,788,257.28/99,129.47
  6. Step 6: Final answer
    x = 74,254.29

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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.