Home / 141,872.60-195,783.48-78,210.32

Finding the Fourth Proportional to 141,872.60, 195,783.48 and 78,210.32

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Solution

The fourth proportional to 141,872.60, 195,783.48 and 78,210.32 is: 107,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,872.60 : 195,783.48 = 78,210.32 : x
  2. Step 2: Convert to fraction form
    141,872.60/195,783.48 = 78,210.32/x
  3. Step 3: Cross multiply
    141,872.60x = 195,783.48 × 78,210.32
  4. Step 4: Simplify right side
    141,872.60x = 15,312,288,621.51
  5. Step 5: Solve for x
    x = 15,312,288,621.51/141,872.60
  6. Step 6: Final answer
    x = 107,929.85

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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.