Home / 124,560.18-171,840.69-86,856.30

Finding the Fourth Proportional to 124,560.18, 171,840.69 and 86,856.30

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Solution

The fourth proportional to 124,560.18, 171,840.69 and 86,856.30 is: 119,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,560.18 : 171,840.69 = 86,856.30 : x
  2. Step 2: Convert to fraction form
    124,560.18/171,840.69 = 86,856.30/x
  3. Step 3: Cross multiply
    124,560.18x = 171,840.69 × 86,856.30
  4. Step 4: Simplify right side
    124,560.18x = 14,925,446,522.85
  5. Step 5: Solve for x
    x = 14,925,446,522.85/124,560.18
  6. Step 6: Final answer
    x = 119,825.18

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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.