Home / 157,004.80-235,507.20-121,969.60

Finding the Fourth Proportional to 157,004.80, 235,507.20 and 121,969.60

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Solution

The fourth proportional to 157,004.80, 235,507.20 and 121,969.60 is: 182,954.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,004.80 : 235,507.20 = 121,969.60 : x
  2. Step 2: Convert to fraction form
    157,004.80/235,507.20 = 121,969.60/x
  3. Step 3: Cross multiply
    157,004.80x = 235,507.20 × 121,969.60
  4. Step 4: Simplify right side
    157,004.80x = 28,724,718,981.12
  5. Step 5: Solve for x
    x = 28,724,718,981.12/157,004.80
  6. Step 6: Final answer
    x = 182,954.40

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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.