Home / 157,362.48-217,159.02-85,742.28

Finding the Fourth Proportional to 157,362.48, 217,159.02 and 85,742.28

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Solution

The fourth proportional to 157,362.48, 217,159.02 and 85,742.28 is: 118,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,362.48 : 217,159.02 = 85,742.28 : x
  2. Step 2: Convert to fraction form
    157,362.48/217,159.02 = 85,742.28/x
  3. Step 3: Cross multiply
    157,362.48x = 217,159.02 × 85,742.28
  4. Step 4: Simplify right side
    157,362.48x = 18,619,709,497.37
  5. Step 5: Solve for x
    x = 18,619,709,497.37/157,362.48
  6. Step 6: Final answer
    x = 118,323.69

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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.