Home / 124,712.10-186,938.55-68,465.70

Finding the Fourth Proportional to 124,712.10, 186,938.55 and 68,465.70

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Solution

The fourth proportional to 124,712.10, 186,938.55 and 68,465.70 is: 102,627.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,712.10 : 186,938.55 = 68,465.70 : x
  2. Step 2: Convert to fraction form
    124,712.10/186,938.55 = 68,465.70/x
  3. Step 3: Cross multiply
    124,712.10x = 186,938.55 × 68,465.70
  4. Step 4: Simplify right side
    124,712.10x = 12,798,878,682.74
  5. Step 5: Solve for x
    x = 12,798,878,682.74/124,712.10
  6. Step 6: Final answer
    x = 102,627.40

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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.