Home / 112,550.02-155,339.81-72,314.08

Finding the Fourth Proportional to 112,550.02, 155,339.81 and 72,314.08

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Solution

The fourth proportional to 112,550.02, 155,339.81 and 72,314.08 is: 99,806.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,550.02 : 155,339.81 = 72,314.08 : x
  2. Step 2: Convert to fraction form
    112,550.02/155,339.81 = 72,314.08/x
  3. Step 3: Cross multiply
    112,550.02x = 155,339.81 × 72,314.08
  4. Step 4: Simplify right side
    112,550.02x = 11,233,255,447.52
  5. Step 5: Solve for x
    x = 11,233,255,447.52/112,550.02
  6. Step 6: Final answer
    x = 99,806.78

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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.