Home / 112,631.45-155,448.85-64,233.48

Finding the Fourth Proportional to 112,631.45, 155,448.85 and 64,233.48

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Solution

The fourth proportional to 112,631.45, 155,448.85 and 64,233.48 is: 88,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,631.45 : 155,448.85 = 64,233.48 : x
  2. Step 2: Convert to fraction form
    112,631.45/155,448.85 = 64,233.48/x
  3. Step 3: Cross multiply
    112,631.45x = 155,448.85 × 64,233.48
  4. Step 4: Simplify right side
    112,631.45x = 9,985,020,597.50
  5. Step 5: Solve for x
    x = 9,985,020,597.50/112,631.45
  6. Step 6: Final answer
    x = 88,652.15

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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.