Home / 112,415.16-155,132.40-64,677.84

Finding the Fourth Proportional to 112,415.16, 155,132.40 and 64,677.84

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Solution

The fourth proportional to 112,415.16, 155,132.40 and 64,677.84 is: 89,255.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415.16 : 155,132.40 = 64,677.84 : x
  2. Step 2: Convert to fraction form
    112,415.16/155,132.40 = 64,677.84/x
  3. Step 3: Cross multiply
    112,415.16x = 155,132.40 × 64,677.84
  4. Step 4: Simplify right side
    112,415.16x = 10,033,628,546.02
  5. Step 5: Solve for x
    x = 10,033,628,546.02/112,415.16
  6. Step 6: Final answer
    x = 89,255.12

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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.