Home / 124,875.10-187,312.65-71,512.30

Finding the Fourth Proportional to 124,875.10, 187,312.65 and 71,512.30

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Solution

The fourth proportional to 124,875.10, 187,312.65 and 71,512.30 is: 107,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,875.10 : 187,312.65 = 71,512.30 : x
  2. Step 2: Convert to fraction form
    124,875.10/187,312.65 = 71,512.30/x
  3. Step 3: Cross multiply
    124,875.10x = 187,312.65 × 71,512.30
  4. Step 4: Simplify right side
    124,875.10x = 13,395,158,420.60
  5. Step 5: Solve for x
    x = 13,395,158,420.60/124,875.10
  6. Step 6: Final answer
    x = 107,268.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.