Home / 163,780.12-245,586.57-74,957.47

Finding the Fourth Proportional to 163,780.12, 245,586.57 and 74,957.47

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Solution

The fourth proportional to 163,780.12, 245,586.57 and 74,957.47 is: 112,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,780.12 : 245,586.57 = 74,957.47 : x
  2. Step 2: Convert to fraction form
    163,780.12/245,586.57 = 74,957.47/x
  3. Step 3: Cross multiply
    163,780.12x = 245,586.57 × 74,957.47
  4. Step 4: Simplify right side
    163,780.12x = 18,408,547,953.18
  5. Step 5: Solve for x
    x = 18,408,547,953.18/163,780.12
  6. Step 6: Final answer
    x = 112,397.94

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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.