Home / 140,410.04-193,738.95-79,979.36

Finding the Fourth Proportional to 140,410.04, 193,738.95 and 79,979.36

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Solution

The fourth proportional to 140,410.04, 193,738.95 and 79,979.36 is: 110,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,410.04 : 193,738.95 = 79,979.36 : x
  2. Step 2: Convert to fraction form
    140,410.04/193,738.95 = 79,979.36/x
  3. Step 3: Cross multiply
    140,410.04x = 193,738.95 × 79,979.36
  4. Step 4: Simplify right side
    140,410.04x = 15,495,116,259.38
  5. Step 5: Solve for x
    x = 15,495,116,259.38/140,410.04
  6. Step 6: Final answer
    x = 110,356.19

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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.