Home / 124,368.90-171,608.67-76,619.40

Finding the Fourth Proportional to 124,368.90, 171,608.67 and 76,619.40

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Solution

The fourth proportional to 124,368.90, 171,608.67 and 76,619.40 is: 105,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,368.90 : 171,608.67 = 76,619.40 : x
  2. Step 2: Convert to fraction form
    124,368.90/171,608.67 = 76,619.40/x
  3. Step 3: Cross multiply
    124,368.90x = 171,608.67 × 76,619.40
  4. Step 4: Simplify right side
    124,368.90x = 13,148,553,330.20
  5. Step 5: Solve for x
    x = 13,148,553,330.20/124,368.90
  6. Step 6: Final answer
    x = 105,722.20

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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.