Home / 113,995.55-157,275.37-66,209.60

Finding the Fourth Proportional to 113,995.55, 157,275.37 and 66,209.60

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Solution

The fourth proportional to 113,995.55, 157,275.37 and 66,209.60 is: 91,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,995.55 : 157,275.37 = 66,209.60 : x
  2. Step 2: Convert to fraction form
    113,995.55/157,275.37 = 66,209.60/x
  3. Step 3: Cross multiply
    113,995.55x = 157,275.37 × 66,209.60
  4. Step 4: Simplify right side
    113,995.55x = 10,413,139,813.50
  5. Step 5: Solve for x
    x = 10,413,139,813.50/113,995.55
  6. Step 6: Final answer
    x = 91,346.90

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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.