Home / 122,681.02-169,288.63-70,989.18

Finding the Fourth Proportional to 122,681.02, 169,288.63 and 70,989.18

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Solution

The fourth proportional to 122,681.02, 169,288.63 and 70,989.18 is: 97,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,681.02 : 169,288.63 = 70,989.18 : x
  2. Step 2: Convert to fraction form
    122,681.02/169,288.63 = 70,989.18/x
  3. Step 3: Cross multiply
    122,681.02x = 169,288.63 × 70,989.18
  4. Step 4: Simplify right side
    122,681.02x = 12,017,661,027.02
  5. Step 5: Solve for x
    x = 12,017,661,027.02/122,681.02
  6. Step 6: Final answer
    x = 97,958.60

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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.