Home / 132,707.61-183,154.56-78,275.19

Finding the Fourth Proportional to 132,707.61, 183,154.56 and 78,275.19

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Solution

The fourth proportional to 132,707.61, 183,154.56 and 78,275.19 is: 108,030.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,707.61 : 183,154.56 = 78,275.19 : x
  2. Step 2: Convert to fraction form
    132,707.61/183,154.56 = 78,275.19/x
  3. Step 3: Cross multiply
    132,707.61x = 183,154.56 × 78,275.19
  4. Step 4: Simplify right side
    132,707.61x = 14,336,457,983.37
  5. Step 5: Solve for x
    x = 14,336,457,983.37/132,707.61
  6. Step 6: Final answer
    x = 108,030.41

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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.