Home / 106,947.15-147,590.55-61,621.62

Finding the Fourth Proportional to 106,947.15, 147,590.55 and 61,621.62

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Solution

The fourth proportional to 106,947.15, 147,590.55 and 61,621.62 is: 85,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,947.15 : 147,590.55 = 61,621.62 : x
  2. Step 2: Convert to fraction form
    106,947.15/147,590.55 = 61,621.62/x
  3. Step 3: Cross multiply
    106,947.15x = 147,590.55 × 61,621.62
  4. Step 4: Simplify right side
    106,947.15x = 9,094,768,787.69
  5. Step 5: Solve for x
    x = 9,094,768,787.69/106,947.15
  6. Step 6: Final answer
    x = 85,039.84

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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.