Home / 145,617.75-218,111.13-70,580.92

Finding the Fourth Proportional to 145,617.75, 218,111.13 and 70,580.92

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Solution

The fourth proportional to 145,617.75, 218,111.13 and 70,580.92 is: 105,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,617.75 : 218,111.13 = 70,580.92 : x
  2. Step 2: Convert to fraction form
    145,617.75/218,111.13 = 70,580.92/x
  3. Step 3: Cross multiply
    145,617.75x = 218,111.13 × 70,580.92
  4. Step 4: Simplify right side
    145,617.75x = 15,394,484,081.32
  5. Step 5: Solve for x
    x = 15,394,484,081.32/145,617.75
  6. Step 6: Final answer
    x = 105,718.46

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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.