Home / 125,101.04-172,639.44-68,512.40

Finding the Fourth Proportional to 125,101.04, 172,639.44 and 68,512.40

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Solution

The fourth proportional to 125,101.04, 172,639.44 and 68,512.40 is: 94,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,101.04 : 172,639.44 = 68,512.40 : x
  2. Step 2: Convert to fraction form
    125,101.04/172,639.44 = 68,512.40/x
  3. Step 3: Cross multiply
    125,101.04x = 172,639.44 × 68,512.40
  4. Step 4: Simplify right side
    125,101.04x = 11,827,942,369.06
  5. Step 5: Solve for x
    x = 11,827,942,369.06/125,101.04
  6. Step 6: Final answer
    x = 94,547.11

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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.