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Finding the Fourth Proportional to 130,359, 179,895.42 and 73,770.51

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Solution

The fourth proportional to 130,359, 179,895.42 and 73,770.51 is: 101,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,359 : 179,895.42 = 73,770.51 : x
  2. Step 2: Convert to fraction form
    130,359/179,895.42 = 73,770.51/x
  3. Step 3: Cross multiply
    130,359x = 179,895.42 × 73,770.51
  4. Step 4: Simplify right side
    130,359x = 13,270,976,880.06
  5. Step 5: Solve for x
    x = 13,270,976,880.06/130,359
  6. Step 6: Final answer
    x = 101,803.30

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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.