Home / 170,130.49-255,373.08-75,427.18

Finding the Fourth Proportional to 170,130.49, 255,373.08 and 75,427.18

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Solution

The fourth proportional to 170,130.49, 255,373.08 and 75,427.18 is: 113,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,130.49 : 255,373.08 = 75,427.18 : x
  2. Step 2: Convert to fraction form
    170,130.49/255,373.08 = 75,427.18/x
  3. Step 3: Cross multiply
    170,130.49x = 255,373.08 × 75,427.18
  4. Step 4: Simplify right side
    170,130.49x = 19,262,071,497.25
  5. Step 5: Solve for x
    x = 19,262,071,497.25/170,130.49
  6. Step 6: Final answer
    x = 113,219.40

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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.