Home / 112,020.32-154,586.84-64,281.18

Finding the Fourth Proportional to 112,020.32, 154,586.84 and 64,281.18

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Solution

The fourth proportional to 112,020.32, 154,586.84 and 64,281.18 is: 88,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,020.32 : 154,586.84 = 64,281.18 : x
  2. Step 2: Convert to fraction form
    112,020.32/154,586.84 = 64,281.18/x
  3. Step 3: Cross multiply
    112,020.32x = 154,586.84 × 64,281.18
  4. Step 4: Simplify right side
    112,020.32x = 9,937,024,487.67
  5. Step 5: Solve for x
    x = 9,937,024,487.67/112,020.32
  6. Step 6: Final answer
    x = 88,707.34

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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.