Home / 145,723.36-201,113.40-89,172.40

Finding the Fourth Proportional to 145,723.36, 201,113.40 and 89,172.40

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Solution

The fourth proportional to 145,723.36, 201,113.40 and 89,172.40 is: 123,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,723.36 : 201,113.40 = 89,172.40 : x
  2. Step 2: Convert to fraction form
    145,723.36/201,113.40 = 89,172.40/x
  3. Step 3: Cross multiply
    145,723.36x = 201,113.40 × 89,172.40
  4. Step 4: Simplify right side
    145,723.36x = 17,933,764,550.16
  5. Step 5: Solve for x
    x = 17,933,764,550.16/145,723.36
  6. Step 6: Final answer
    x = 123,067.19

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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.