Home / 115,983.02-160,133.70-89,077.46

Finding the Fourth Proportional to 115,983.02, 160,133.70 and 89,077.46

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Solution

The fourth proportional to 115,983.02, 160,133.70 and 89,077.46 is: 122,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,983.02 : 160,133.70 = 89,077.46 : x
  2. Step 2: Convert to fraction form
    115,983.02/160,133.70 = 89,077.46/x
  3. Step 3: Cross multiply
    115,983.02x = 160,133.70 × 89,077.46
  4. Step 4: Simplify right side
    115,983.02x = 14,264,303,256.40
  5. Step 5: Solve for x
    x = 14,264,303,256.40/115,983.02
  6. Step 6: Final answer
    x = 122,986.13

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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.