Home / 181,145.17-249,968.77-100,572.67

Finding the Fourth Proportional to 181,145.17, 249,968.77 and 100,572.67

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Solution

The fourth proportional to 181,145.17, 249,968.77 and 100,572.67 is: 138,783.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,145.17 : 249,968.77 = 100,572.67 : x
  2. Step 2: Convert to fraction form
    181,145.17/249,968.77 = 100,572.67/x
  3. Step 3: Cross multiply
    181,145.17x = 249,968.77 × 100,572.67
  4. Step 4: Simplify right side
    181,145.17x = 25,140,025,739.16
  5. Step 5: Solve for x
    x = 25,140,025,739.16/181,145.17
  6. Step 6: Final answer
    x = 138,783.86

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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.