Home / 155,457.60-214,531.80-91,799.46

Finding the Fourth Proportional to 155,457.60, 214,531.80 and 91,799.46

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Solution

The fourth proportional to 155,457.60, 214,531.80 and 91,799.46 is: 126,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,457.60 : 214,531.80 = 91,799.46 : x
  2. Step 2: Convert to fraction form
    155,457.60/214,531.80 = 91,799.46/x
  3. Step 3: Cross multiply
    155,457.60x = 214,531.80 × 91,799.46
  4. Step 4: Simplify right side
    155,457.60x = 19,693,903,392.83
  5. Step 5: Solve for x
    x = 19,693,903,392.83/155,457.60
  6. Step 6: Final answer
    x = 126,683.44

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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.