Home / 99,129.39-136,798.65-53,807.35

Finding the Fourth Proportional to 99,129.39, 136,798.65 and 53,807.35

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Solution

The fourth proportional to 99,129.39, 136,798.65 and 53,807.35 is: 74,254.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,129.39 : 136,798.65 = 53,807.35 : x
  2. Step 2: Convert to fraction form
    99,129.39/136,798.65 = 53,807.35/x
  3. Step 3: Cross multiply
    99,129.39x = 136,798.65 × 53,807.35
  4. Step 4: Simplify right side
    99,129.39x = 7,360,772,840.08
  5. Step 5: Solve for x
    x = 7,360,772,840.08/99,129.39
  6. Step 6: Final answer
    x = 74,254.19

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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.