Home / 158,427.01-218,638.02-90,465.81

Finding the Fourth Proportional to 158,427.01, 218,638.02 and 90,465.81

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Solution

The fourth proportional to 158,427.01, 218,638.02 and 90,465.81 is: 124,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,427.01 : 218,638.02 = 90,465.81 : x
  2. Step 2: Convert to fraction form
    158,427.01/218,638.02 = 90,465.81/x
  3. Step 3: Cross multiply
    158,427.01x = 218,638.02 × 90,465.81
  4. Step 4: Simplify right side
    158,427.01x = 19,779,265,576.10
  5. Step 5: Solve for x
    x = 19,779,265,576.10/158,427.01
  6. Step 6: Final answer
    x = 124,847.81

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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.