Home / 157,457.36-217,290.54-85,837.16

Finding the Fourth Proportional to 157,457.36, 217,290.54 and 85,837.16

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Solution

The fourth proportional to 157,457.36, 217,290.54 and 85,837.16 is: 118,454.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,457.36 : 217,290.54 = 85,837.16 : x
  2. Step 2: Convert to fraction form
    157,457.36/217,290.54 = 85,837.16/x
  3. Step 3: Cross multiply
    157,457.36x = 217,290.54 × 85,837.16
  4. Step 4: Simplify right side
    157,457.36x = 18,651,602,848.47
  5. Step 5: Solve for x
    x = 18,651,602,848.47/157,457.36
  6. Step 6: Final answer
    x = 118,454.94

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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.