Home / 156,742.90-235,130.73-51,570.16

Finding the Fourth Proportional to 156,742.90, 235,130.73 and 51,570.16

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Solution

The fourth proportional to 156,742.90, 235,130.73 and 51,570.16 is: 77,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,742.90 : 235,130.73 = 51,570.16 : x
  2. Step 2: Convert to fraction form
    156,742.90/235,130.73 = 51,570.16/x
  3. Step 3: Cross multiply
    156,742.90x = 235,130.73 × 51,570.16
  4. Step 4: Simplify right side
    156,742.90x = 12,125,729,367.02
  5. Step 5: Solve for x
    x = 12,125,729,367.02/156,742.90
  6. Step 6: Final answer
    x = 77,360.63

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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.