Home / 145,265.04-218,015.28-75,164.40

Finding the Fourth Proportional to 145,265.04, 218,015.28 and 75,164.40

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Solution

The fourth proportional to 145,265.04, 218,015.28 and 75,164.40 is: 112,807.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,265.04 : 218,015.28 = 75,164.40 : x
  2. Step 2: Convert to fraction form
    145,265.04/218,015.28 = 75,164.40/x
  3. Step 3: Cross multiply
    145,265.04x = 218,015.28 × 75,164.40
  4. Step 4: Simplify right side
    145,265.04x = 16,386,987,712.03
  5. Step 5: Solve for x
    x = 16,386,987,712.03/145,265.04
  6. Step 6: Final answer
    x = 112,807.51

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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.