Home / 112,279.02-154,945.08-61,978.02

Finding the Fourth Proportional to 112,279.02, 154,945.08 and 61,978.02

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Solution

The fourth proportional to 112,279.02, 154,945.08 and 61,978.02 is: 85,529.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,279.02 : 154,945.08 = 61,978.02 : x
  2. Step 2: Convert to fraction form
    112,279.02/154,945.08 = 61,978.02/x
  3. Step 3: Cross multiply
    112,279.02x = 154,945.08 × 61,978.02
  4. Step 4: Simplify right side
    112,279.02x = 9,603,189,267.14
  5. Step 5: Solve for x
    x = 9,603,189,267.14/112,279.02
  6. Step 6: Final answer
    x = 85,529.69

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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.