Home / 99,230.12-136,937.74-53,908.28

Finding the Fourth Proportional to 99,230.12, 136,937.74 and 53,908.28

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Solution

The fourth proportional to 99,230.12, 136,937.74 and 53,908.28 is: 74,393.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,230.12 : 136,937.74 = 53,908.28 : x
  2. Step 2: Convert to fraction form
    99,230.12/136,937.74 = 53,908.28/x
  3. Step 3: Cross multiply
    99,230.12x = 136,937.74 × 53,908.28
  4. Step 4: Simplify right side
    99,230.12x = 7,382,078,030.49
  5. Step 5: Solve for x
    x = 7,382,078,030.49/99,230.12
  6. Step 6: Final answer
    x = 74,393.52

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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.