Home / 108,946.78-163,430.79-42,392.32

Finding the Fourth Proportional to 108,946.78, 163,430.79 and 42,392.32

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Solution

The fourth proportional to 108,946.78, 163,430.79 and 42,392.32 is: 63,592.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,946.78 : 163,430.79 = 42,392.32 : x
  2. Step 2: Convert to fraction form
    108,946.78/163,430.79 = 42,392.32/x
  3. Step 3: Cross multiply
    108,946.78x = 163,430.79 × 42,392.32
  4. Step 4: Simplify right side
    108,946.78x = 6,928,210,347.53
  5. Step 5: Solve for x
    x = 6,928,210,347.53/108,946.78
  6. Step 6: Final answer
    x = 63,592.61

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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.