Home / 157,020.39-216,683.51-89,043.57

Finding the Fourth Proportional to 157,020.39, 216,683.51 and 89,043.57

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Solution

The fourth proportional to 157,020.39, 216,683.51 and 89,043.57 is: 122,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,020.39 : 216,683.51 = 89,043.57 : x
  2. Step 2: Convert to fraction form
    157,020.39/216,683.51 = 89,043.57/x
  3. Step 3: Cross multiply
    157,020.39x = 216,683.51 × 89,043.57
  4. Step 4: Simplify right side
    157,020.39x = 19,294,272,845.31
  5. Step 5: Solve for x
    x = 19,294,272,845.31/157,020.39
  6. Step 6: Final answer
    x = 122,877.50

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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.