Home / 147,488.64-203,534.52-80,420.64

Finding the Fourth Proportional to 147,488.64, 203,534.52 and 80,420.64

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Solution

The fourth proportional to 147,488.64, 203,534.52 and 80,420.64 is: 110,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,488.64 : 203,534.52 = 80,420.64 : x
  2. Step 2: Convert to fraction form
    147,488.64/203,534.52 = 80,420.64/x
  3. Step 3: Cross multiply
    147,488.64x = 203,534.52 × 80,420.64
  4. Step 4: Simplify right side
    147,488.64x = 16,368,376,360.49
  5. Step 5: Solve for x
    x = 16,368,376,360.49/147,488.64
  6. Step 6: Final answer
    x = 110,980.59

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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.