Home / 100,305.07-150,421.68-46,987.92

Finding the Fourth Proportional to 100,305.07, 150,421.68 and 46,987.92

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Solution

The fourth proportional to 100,305.07, 150,421.68 and 46,987.92 is: 70,465.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,305.07 : 150,421.68 = 46,987.92 : x
  2. Step 2: Convert to fraction form
    100,305.07/150,421.68 = 46,987.92/x
  3. Step 3: Cross multiply
    100,305.07x = 150,421.68 × 46,987.92
  4. Step 4: Simplify right side
    100,305.07x = 7,068,001,866.11
  5. Step 5: Solve for x
    x = 7,068,001,866.11/100,305.07
  6. Step 6: Final answer
    x = 70,465.05

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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.