Home / 142,427.23-213,745.80-67,547.59

Finding the Fourth Proportional to 142,427.23, 213,745.80 and 67,547.59

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Solution

The fourth proportional to 142,427.23, 213,745.80 and 67,547.59 is: 101,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,427.23 : 213,745.80 = 67,547.59 : x
  2. Step 2: Convert to fraction form
    142,427.23/213,745.80 = 67,547.59/x
  3. Step 3: Cross multiply
    142,427.23x = 213,745.80 × 67,547.59
  4. Step 4: Simplify right side
    142,427.23x = 14,438,013,381.56
  5. Step 5: Solve for x
    x = 14,438,013,381.56/142,427.23
  6. Step 6: Final answer
    x = 101,371.16

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1.5x scale

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.