Home / 113,075.13-156,032.10-65,343.84

Finding the Fourth Proportional to 113,075.13, 156,032.10 and 65,343.84

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Solution

The fourth proportional to 113,075.13, 156,032.10 and 65,343.84 is: 90,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,075.13 : 156,032.10 = 65,343.84 : x
  2. Step 2: Convert to fraction form
    113,075.13/156,032.10 = 65,343.84/x
  3. Step 3: Cross multiply
    113,075.13x = 156,032.10 × 65,343.84
  4. Step 4: Simplify right side
    113,075.13x = 10,195,736,577.26
  5. Step 5: Solve for x
    x = 10,195,736,577.26/113,075.13
  6. Step 6: Final answer
    x = 90,167.81

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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.