Home / 140,411.04-193,740.33-79,980.36

Finding the Fourth Proportional to 140,411.04, 193,740.33 and 79,980.36

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Solution

The fourth proportional to 140,411.04, 193,740.33 and 79,980.36 is: 110,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,411.04 : 193,740.33 = 79,980.36 : x
  2. Step 2: Convert to fraction form
    140,411.04/193,740.33 = 79,980.36/x
  3. Step 3: Cross multiply
    140,411.04x = 193,740.33 × 79,980.36
  4. Step 4: Simplify right side
    140,411.04x = 15,495,421,339.92
  5. Step 5: Solve for x
    x = 15,495,421,339.92/140,411.04
  6. Step 6: Final answer
    x = 110,357.57

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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.