Home / 124,432.40-171,647.38-86,214.32

Finding the Fourth Proportional to 124,432.40, 171,647.38 and 86,214.32

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Solution

The fourth proportional to 124,432.40, 171,647.38 and 86,214.32 is: 118,927.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,432.40 : 171,647.38 = 86,214.32 : x
  2. Step 2: Convert to fraction form
    124,432.40/171,647.38 = 86,214.32/x
  3. Step 3: Cross multiply
    124,432.40x = 171,647.38 × 86,214.32
  4. Step 4: Simplify right side
    124,432.40x = 14,798,462,146.48
  5. Step 5: Solve for x
    x = 14,798,462,146.48/124,432.40
  6. Step 6: Final answer
    x = 118,927.72

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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.