Home / 112,733.22-155,572-64,989.80

Finding the Fourth Proportional to 112,733.22, 155,572 and 64,989.80

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Solution

The fourth proportional to 112,733.22, 155,572 and 64,989.80 is: 89,686.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,733.22 : 155,572 = 64,989.80 : x
  2. Step 2: Convert to fraction form
    112,733.22/155,572 = 64,989.80/x
  3. Step 3: Cross multiply
    112,733.22x = 155,572 × 64,989.80
  4. Step 4: Simplify right side
    112,733.22x = 10,110,593,165.60
  5. Step 5: Solve for x
    x = 10,110,593,165.60/112,733.22
  6. Step 6: Final answer
    x = 89,686.01

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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.