Home / 133,023.42-183,572.70-76,434.78

Finding the Fourth Proportional to 133,023.42, 183,572.70 and 76,434.78

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Solution

The fourth proportional to 133,023.42, 183,572.70 and 76,434.78 is: 105,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,023.42 : 183,572.70 = 76,434.78 : x
  2. Step 2: Convert to fraction form
    133,023.42/183,572.70 = 76,434.78/x
  3. Step 3: Cross multiply
    133,023.42x = 183,572.70 × 76,434.78
  4. Step 4: Simplify right side
    133,023.42x = 14,031,338,938.51
  5. Step 5: Solve for x
    x = 14,031,338,938.51/133,023.42
  6. Step 6: Final answer
    x = 105,480.21

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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.