Home / 124,280.40-171,570.60-84,205.20

Finding the Fourth Proportional to 124,280.40, 171,570.60 and 84,205.20

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Solution

The fourth proportional to 124,280.40, 171,570.60 and 84,205.20 is: 116,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,280.40 : 171,570.60 = 84,205.20 : x
  2. Step 2: Convert to fraction form
    124,280.40/171,570.60 = 84,205.20/x
  3. Step 3: Cross multiply
    124,280.40x = 171,570.60 × 84,205.20
  4. Step 4: Simplify right side
    124,280.40x = 14,447,136,687.12
  5. Step 5: Solve for x
    x = 14,447,136,687.12/124,280.40
  6. Step 6: Final answer
    x = 116,246.30

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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.