Home / 135,008.36-186,307.93-74,577.70

Finding the Fourth Proportional to 135,008.36, 186,307.93 and 74,577.70

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Solution

The fourth proportional to 135,008.36, 186,307.93 and 74,577.70 is: 102,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,008.36 : 186,307.93 = 74,577.70 : x
  2. Step 2: Convert to fraction form
    135,008.36/186,307.93 = 74,577.70/x
  3. Step 3: Cross multiply
    135,008.36x = 186,307.93 × 74,577.70
  4. Step 4: Simplify right side
    135,008.36x = 13,894,417,423.37
  5. Step 5: Solve for x
    x = 13,894,417,423.37/135,008.36
  6. Step 6: Final answer
    x = 102,915.24

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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.