Home / 111,075.48-153,280.35-63,344.19

Finding the Fourth Proportional to 111,075.48, 153,280.35 and 63,344.19

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Solution

The fourth proportional to 111,075.48, 153,280.35 and 63,344.19 is: 87,412.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,075.48 : 153,280.35 = 63,344.19 : x
  2. Step 2: Convert to fraction form
    111,075.48/153,280.35 = 63,344.19/x
  3. Step 3: Cross multiply
    111,075.48x = 153,280.35 × 63,344.19
  4. Step 4: Simplify right side
    111,075.48x = 9,709,419,613.67
  5. Step 5: Solve for x
    x = 9,709,419,613.67/111,075.48
  6. Step 6: Final answer
    x = 87,412.81

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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.