Home / 157,012.83-235,548.45-72,717.30

Finding the Fourth Proportional to 157,012.83, 235,548.45 and 72,717.30

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Solution

The fourth proportional to 157,012.83, 235,548.45 and 72,717.30 is: 109,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,012.83 : 235,548.45 = 72,717.30 : x
  2. Step 2: Convert to fraction form
    157,012.83/235,548.45 = 72,717.30/x
  3. Step 3: Cross multiply
    157,012.83x = 235,548.45 × 72,717.30
  4. Step 4: Simplify right side
    157,012.83x = 17,128,447,303.19
  5. Step 5: Solve for x
    x = 17,128,447,303.19/157,012.83
  6. Step 6: Final answer
    x = 109,089.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.