Home / 133,289.49-183,944.45-72,864.23

Finding the Fourth Proportional to 133,289.49, 183,944.45 and 72,864.23

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Solution

The fourth proportional to 133,289.49, 183,944.45 and 72,864.23 is: 100,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,289.49 : 183,944.45 = 72,864.23 : x
  2. Step 2: Convert to fraction form
    133,289.49/183,944.45 = 72,864.23/x
  3. Step 3: Cross multiply
    133,289.49x = 183,944.45 × 72,864.23
  4. Step 4: Simplify right side
    133,289.49x = 13,402,970,807.56
  5. Step 5: Solve for x
    x = 13,402,970,807.56/133,289.49
  6. Step 6: Final answer
    x = 100,555.35

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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.