Home / 101,130.24-139,534.84-61,829.30

Finding the Fourth Proportional to 101,130.24, 139,534.84 and 61,829.30

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Solution

The fourth proportional to 101,130.24, 139,534.84 and 61,829.30 is: 85,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,130.24 : 139,534.84 = 61,829.30 : x
  2. Step 2: Convert to fraction form
    101,130.24/139,534.84 = 61,829.30/x
  3. Step 3: Cross multiply
    101,130.24x = 139,534.84 × 61,829.30
  4. Step 4: Simplify right side
    101,130.24x = 8,627,341,482.81
  5. Step 5: Solve for x
    x = 8,627,341,482.81/101,130.24
  6. Step 6: Final answer
    x = 85,309.22

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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.