Home / 145,417.36-218,128.77-45,575.34

Finding the Fourth Proportional to 145,417.36, 218,128.77 and 45,575.34

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Solution

The fourth proportional to 145,417.36, 218,128.77 and 45,575.34 is: 68,363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.36 : 218,128.77 = 45,575.34 : x
  2. Step 2: Convert to fraction form
    145,417.36/218,128.77 = 45,575.34/x
  3. Step 3: Cross multiply
    145,417.36x = 218,128.77 × 45,575.34
  4. Step 4: Simplify right side
    145,417.36x = 9,941,292,628.66
  5. Step 5: Solve for x
    x = 9,941,292,628.66/145,417.36
  6. Step 6: Final answer
    x = 68,363.87

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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.