Home / 180,728.56-249,413.88-112,785.76

Finding the Fourth Proportional to 180,728.56, 249,413.88 and 112,785.76

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Solution

The fourth proportional to 180,728.56, 249,413.88 and 112,785.76 is: 155,649.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,728.56 : 249,413.88 = 112,785.76 : x
  2. Step 2: Convert to fraction form
    180,728.56/249,413.88 = 112,785.76/x
  3. Step 3: Cross multiply
    180,728.56x = 249,413.88 × 112,785.76
  4. Step 4: Simplify right side
    180,728.56x = 28,130,334,010.35
  5. Step 5: Solve for x
    x = 28,130,334,010.35/180,728.56
  6. Step 6: Final answer
    x = 155,649.63

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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.