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Finding the Fourth Proportional to 103,330.94, 142,579.71 and 60,883.70

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Solution

The fourth proportional to 103,330.94, 142,579.71 and 60,883.70 is: 84,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,330.94 : 142,579.71 = 60,883.70 : x
  2. Step 2: Convert to fraction form
    103,330.94/142,579.71 = 60,883.70/x
  3. Step 3: Cross multiply
    103,330.94x = 142,579.71 × 60,883.70
  4. Step 4: Simplify right side
    103,330.94x = 8,680,779,576.83
  5. Step 5: Solve for x
    x = 8,680,779,576.83/103,330.94
  6. Step 6: Final answer
    x = 84,009.49

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1.5x scale

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.