Home / 136,430.05-204,645.08-42,923.65

Finding the Fourth Proportional to 136,430.05, 204,645.08 and 42,923.65

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Solution

The fourth proportional to 136,430.05, 204,645.08 and 42,923.65 is: 64,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,430.05 : 204,645.08 = 42,923.65 : x
  2. Step 2: Convert to fraction form
    136,430.05/204,645.08 = 42,923.65/x
  3. Step 3: Cross multiply
    136,430.05x = 204,645.08 × 42,923.65
  4. Step 4: Simplify right side
    136,430.05x = 8,784,113,573.52
  5. Step 5: Solve for x
    x = 8,784,113,573.52/136,430.05
  6. Step 6: Final answer
    x = 64,385.48

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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.