Home / 108,862.49-163,304.06-42,307.76

Finding the Fourth Proportional to 108,862.49, 163,304.06 and 42,307.76

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Solution

The fourth proportional to 108,862.49, 163,304.06 and 42,307.76 is: 63,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,862.49 : 163,304.06 = 42,307.76 : x
  2. Step 2: Convert to fraction form
    108,862.49/163,304.06 = 42,307.76/x
  3. Step 3: Cross multiply
    108,862.49x = 163,304.06 × 42,307.76
  4. Step 4: Simplify right side
    108,862.49x = 6,909,028,977.51
  5. Step 5: Solve for x
    x = 6,909,028,977.51/108,862.49
  6. Step 6: Final answer
    x = 63,465.65

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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.