Home / 161,964.51-223,515.75-90,342.98

Finding the Fourth Proportional to 161,964.51, 223,515.75 and 90,342.98

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Solution

The fourth proportional to 161,964.51, 223,515.75 and 90,342.98 is: 124,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,964.51 : 223,515.75 = 90,342.98 : x
  2. Step 2: Convert to fraction form
    161,964.51/223,515.75 = 90,342.98/x
  3. Step 3: Cross multiply
    161,964.51x = 223,515.75 × 90,342.98
  4. Step 4: Simplify right side
    161,964.51x = 20,193,078,931.94
  5. Step 5: Solve for x
    x = 20,193,078,931.94/161,964.51
  6. Step 6: Final answer
    x = 124,675.95

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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.