Home / 145,728.60-202,022.57-137,746.05

Finding the Fourth Proportional to 145,728.60, 202,022.57 and 137,746.05

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Solution

The fourth proportional to 145,728.60, 202,022.57 and 137,746.05 is: 190,956.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,728.60 : 202,022.57 = 137,746.05 : x
  2. Step 2: Convert to fraction form
    145,728.60/202,022.57 = 137,746.05/x
  3. Step 3: Cross multiply
    145,728.60x = 202,022.57 × 137,746.05
  4. Step 4: Simplify right side
    145,728.60x = 27,827,810,339.62
  5. Step 5: Solve for x
    x = 27,827,810,339.62/145,728.60
  6. Step 6: Final answer
    x = 190,956.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.