Home / 124,802.78-172,225.28-68,214.56

Finding the Fourth Proportional to 124,802.78, 172,225.28 and 68,214.56

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Solution

The fourth proportional to 124,802.78, 172,225.28 and 68,214.56 is: 94,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,802.78 : 172,225.28 = 68,214.56 : x
  2. Step 2: Convert to fraction form
    124,802.78/172,225.28 = 68,214.56/x
  3. Step 3: Cross multiply
    124,802.78x = 172,225.28 × 68,214.56
  4. Step 4: Simplify right side
    124,802.78x = 11,748,271,696.08
  5. Step 5: Solve for x
    x = 11,748,271,696.08/124,802.78
  6. Step 6: Final answer
    x = 94,134.70

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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.