Home / 122,507.16-169,075.56-74,750.40

Finding the Fourth Proportional to 122,507.16, 169,075.56 and 74,750.40

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Solution

The fourth proportional to 122,507.16, 169,075.56 and 74,750.40 is: 103,165.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,507.16 : 169,075.56 = 74,750.40 : x
  2. Step 2: Convert to fraction form
    122,507.16/169,075.56 = 74,750.40/x
  3. Step 3: Cross multiply
    122,507.16x = 169,075.56 × 74,750.40
  4. Step 4: Simplify right side
    122,507.16x = 12,638,465,740.22
  5. Step 5: Solve for x
    x = 12,638,465,740.22/122,507.16
  6. Step 6: Final answer
    x = 103,165.12

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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.