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Finding the Fourth Proportional to 103,477.89, 142,838.51 and 60,471.39

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Solution

The fourth proportional to 103,477.89, 142,838.51 and 60,471.39 is: 83,473.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,477.89 : 142,838.51 = 60,471.39 : x
  2. Step 2: Convert to fraction form
    103,477.89/142,838.51 = 60,471.39/x
  3. Step 3: Cross multiply
    103,477.89x = 142,838.51 × 60,471.39
  4. Step 4: Simplify right side
    103,477.89x = 8,637,642,942.87
  5. Step 5: Solve for x
    x = 8,637,642,942.87/103,477.89
  6. Step 6: Final answer
    x = 83,473.32

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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.