Home / 108,109.36-149,215.80-63,411.76

Finding the Fourth Proportional to 108,109.36, 149,215.80 and 63,411.76

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Solution

The fourth proportional to 108,109.36, 149,215.80 and 63,411.76 is: 87,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,109.36 : 149,215.80 = 63,411.76 : x
  2. Step 2: Convert to fraction form
    108,109.36/149,215.80 = 63,411.76/x
  3. Step 3: Cross multiply
    108,109.36x = 149,215.80 × 63,411.76
  4. Step 4: Simplify right side
    108,109.36x = 9,462,036,497.81
  5. Step 5: Solve for x
    x = 9,462,036,497.81/108,109.36
  6. Step 6: Final answer
    x = 87,522.82

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1.5x scale

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.