Home / 104,690.30-144,522.80-64,438.56

Finding the Fourth Proportional to 104,690.30, 144,522.80 and 64,438.56

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Solution

The fourth proportional to 104,690.30, 144,522.80 and 64,438.56 is: 88,956.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,690.30 : 144,522.80 = 64,438.56 : x
  2. Step 2: Convert to fraction form
    104,690.30/144,522.80 = 64,438.56/x
  3. Step 3: Cross multiply
    104,690.30x = 144,522.80 × 64,438.56
  4. Step 4: Simplify right side
    104,690.30x = 9,312,841,038.62
  5. Step 5: Solve for x
    x = 9,312,841,038.62/104,690.30
  6. Step 6: Final answer
    x = 88,956.11

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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.