Home / 143,543.10-214,925.85-112,439.10

Finding the Fourth Proportional to 143,543.10, 214,925.85 and 112,439.10

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Solution

The fourth proportional to 143,543.10, 214,925.85 and 112,439.10 is: 168,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,543.10 : 214,925.85 = 112,439.10 : x
  2. Step 2: Convert to fraction form
    143,543.10/214,925.85 = 112,439.10/x
  3. Step 3: Cross multiply
    143,543.10x = 214,925.85 × 112,439.10
  4. Step 4: Simplify right side
    143,543.10x = 24,166,069,140.74
  5. Step 5: Solve for x
    x = 24,166,069,140.74/143,543.10
  6. Step 6: Final answer
    x = 168,354.10

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1.5x scale

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.