Home / 157,055.31-216,735.25-89,085.51

Finding the Fourth Proportional to 157,055.31, 216,735.25 and 89,085.51

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Solution

The fourth proportional to 157,055.31, 216,735.25 and 89,085.51 is: 122,937.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,055.31 : 216,735.25 = 89,085.51 : x
  2. Step 2: Convert to fraction form
    157,055.31/216,735.25 = 89,085.51/x
  3. Step 3: Cross multiply
    157,055.31x = 216,735.25 × 89,085.51
  4. Step 4: Simplify right side
    157,055.31x = 19,307,970,281.23
  5. Step 5: Solve for x
    x = 19,307,970,281.23/157,055.31
  6. Step 6: Final answer
    x = 122,937.39

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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.