Home / 101,302.24-139,779.12-61,005.28

Finding the Fourth Proportional to 101,302.24, 139,779.12 and 61,005.28

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Solution

The fourth proportional to 101,302.24, 139,779.12 and 61,005.28 is: 84,176.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,302.24 : 139,779.12 = 61,005.28 : x
  2. Step 2: Convert to fraction form
    101,302.24/139,779.12 = 61,005.28/x
  3. Step 3: Cross multiply
    101,302.24x = 139,779.12 × 61,005.28
  4. Step 4: Simplify right side
    101,302.24x = 8,527,264,353.75
  5. Step 5: Solve for x
    x = 8,527,264,353.75/101,302.24
  6. Step 6: Final answer
    x = 84,176.46

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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.