Home / 100,689.48-151,041.51-30,574.26

Finding the Fourth Proportional to 100,689.48, 151,041.51 and 30,574.26

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Solution

The fourth proportional to 100,689.48, 151,041.51 and 30,574.26 is: 45,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,689.48 : 151,041.51 = 30,574.26 : x
  2. Step 2: Convert to fraction form
    100,689.48/151,041.51 = 30,574.26/x
  3. Step 3: Cross multiply
    100,689.48x = 151,041.51 × 30,574.26
  4. Step 4: Simplify right side
    100,689.48x = 4,617,982,397.53
  5. Step 5: Solve for x
    x = 4,617,982,397.53/100,689.48
  6. Step 6: Final answer
    x = 45,863.60

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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.