Home / 75,178.04-103,742.98-42,914.32

Finding the Fourth Proportional to 75,178.04, 103,742.98 and 42,914.32

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Solution

The fourth proportional to 75,178.04, 103,742.98 and 42,914.32 is: 59,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,178.04 : 103,742.98 = 42,914.32 : x
  2. Step 2: Convert to fraction form
    75,178.04/103,742.98 = 42,914.32/x
  3. Step 3: Cross multiply
    75,178.04x = 103,742.98 × 42,914.32
  4. Step 4: Simplify right side
    75,178.04x = 4,452,059,441.47
  5. Step 5: Solve for x
    x = 4,452,059,441.47/75,178.04
  6. Step 6: Final answer
    x = 59,220.21

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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.