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Finding the Fourth Proportional to 158,470, 218,688.60 and 94,810.48

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Solution

The fourth proportional to 158,470, 218,688.60 and 94,810.48 is: 130,838.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,470 : 218,688.60 = 94,810.48 : x
  2. Step 2: Convert to fraction form
    158,470/218,688.60 = 94,810.48/x
  3. Step 3: Cross multiply
    158,470x = 218,688.60 × 94,810.48
  4. Step 4: Simplify right side
    158,470x = 20,733,971,136.53
  5. Step 5: Solve for x
    x = 20,733,971,136.53/158,470
  6. Step 6: Final answer
    x = 130,838.46

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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.