Home / 130,981.65-196,332.59-74,700.57

Finding the Fourth Proportional to 130,981.65, 196,332.59 and 74,700.57

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Solution

The fourth proportional to 130,981.65, 196,332.59 and 74,700.57 is: 111,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,981.65 : 196,332.59 = 74,700.57 : x
  2. Step 2: Convert to fraction form
    130,981.65/196,332.59 = 74,700.57/x
  3. Step 3: Cross multiply
    130,981.65x = 196,332.59 × 74,700.57
  4. Step 4: Simplify right side
    130,981.65x = 14,666,156,382.58
  5. Step 5: Solve for x
    x = 14,666,156,382.58/130,981.65
  6. Step 6: Final answer
    x = 111,971.08

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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.