Home / 99,317.19-136,923.58-67,430.73

Finding the Fourth Proportional to 99,317.19, 136,923.58 and 67,430.73

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Solution

The fourth proportional to 99,317.19, 136,923.58 and 67,430.73 is: 92,963.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,317.19 : 136,923.58 = 67,430.73 : x
  2. Step 2: Convert to fraction form
    99,317.19/136,923.58 = 67,430.73/x
  3. Step 3: Cross multiply
    99,317.19x = 136,923.58 × 67,430.73
  4. Step 4: Simplify right side
    99,317.19x = 9,232,856,953.61
  5. Step 5: Solve for x
    x = 9,232,856,953.61/99,317.19
  6. Step 6: Final answer
    x = 92,963.33

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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.