Home / 104,021.76-143,549.88-56,275.02

Finding the Fourth Proportional to 104,021.76, 143,549.88 and 56,275.02

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Solution

The fourth proportional to 104,021.76, 143,549.88 and 56,275.02 is: 77,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,021.76 : 143,549.88 = 56,275.02 : x
  2. Step 2: Convert to fraction form
    104,021.76/143,549.88 = 56,275.02/x
  3. Step 3: Cross multiply
    104,021.76x = 143,549.88 × 56,275.02
  4. Step 4: Simplify right side
    104,021.76x = 8,078,272,368.00
  5. Step 5: Solve for x
    x = 8,078,272,368.00/104,021.76
  6. Step 6: Final answer
    x = 77,659.45

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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.