Home / 136,916.84-188,938.48-76,475.45

Finding the Fourth Proportional to 136,916.84, 188,938.48 and 76,475.45

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Solution

The fourth proportional to 136,916.84, 188,938.48 and 76,475.45 is: 105,532.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,916.84 : 188,938.48 = 76,475.45 : x
  2. Step 2: Convert to fraction form
    136,916.84/188,938.48 = 76,475.45/x
  3. Step 3: Cross multiply
    136,916.84x = 188,938.48 × 76,475.45
  4. Step 4: Simplify right side
    136,916.84x = 14,449,155,280.32
  5. Step 5: Solve for x
    x = 14,449,155,280.32/136,916.84
  6. Step 6: Final answer
    x = 105,532.35

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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.