Home / 108,421.90-149,624.02-59,362.72

Finding the Fourth Proportional to 108,421.90, 149,624.02 and 59,362.72

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Solution

The fourth proportional to 108,421.90, 149,624.02 and 59,362.72 is: 81,921.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,421.90 : 149,624.02 = 59,362.72 : x
  2. Step 2: Convert to fraction form
    108,421.90/149,624.02 = 59,362.72/x
  3. Step 3: Cross multiply
    108,421.90x = 149,624.02 × 59,362.72
  4. Step 4: Simplify right side
    108,421.90x = 8,882,088,804.53
  5. Step 5: Solve for x
    x = 8,882,088,804.53/108,421.90
  6. Step 6: Final answer
    x = 81,921.54

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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.