Home / 118,977.12-178,482.14-40,113.90

Finding the Fourth Proportional to 118,977.12, 178,482.14 and 40,113.90

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Solution

The fourth proportional to 118,977.12, 178,482.14 and 40,113.90 is: 60,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,977.12 : 178,482.14 = 40,113.90 : x
  2. Step 2: Convert to fraction form
    118,977.12/178,482.14 = 40,113.90/x
  3. Step 3: Cross multiply
    118,977.12x = 178,482.14 × 40,113.90
  4. Step 4: Simplify right side
    118,977.12x = 7,159,614,715.75
  5. Step 5: Solve for x
    x = 7,159,614,715.75/118,977.12
  6. Step 6: Final answer
    x = 60,176.40

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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.