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Finding the Fourth Proportional to 163,544.40, 245,243.70 and 74,752.20

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Solution

The fourth proportional to 163,544.40, 245,243.70 and 74,752.20 is: 112,094.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,544.40 : 245,243.70 = 74,752.20 : x
  2. Step 2: Convert to fraction form
    163,544.40/245,243.70 = 74,752.20/x
  3. Step 3: Cross multiply
    163,544.40x = 245,243.70 × 74,752.20
  4. Step 4: Simplify right side
    163,544.40x = 18,332,506,111.14
  5. Step 5: Solve for x
    x = 18,332,506,111.14/163,544.40
  6. Step 6: Final answer
    x = 112,094.98

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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.