Home / 157,055.45-235,629.63-90,543.30

Finding the Fourth Proportional to 157,055.45, 235,629.63 and 90,543.30

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Solution

The fourth proportional to 157,055.45, 235,629.63 and 90,543.30 is: 135,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,055.45 : 235,629.63 = 90,543.30 : x
  2. Step 2: Convert to fraction form
    157,055.45/235,629.63 = 90,543.30/x
  3. Step 3: Cross multiply
    157,055.45x = 235,629.63 × 90,543.30
  4. Step 4: Simplify right side
    157,055.45x = 21,334,684,277.98
  5. Step 5: Solve for x
    x = 21,334,684,277.98/157,055.45
  6. Step 6: Final answer
    x = 135,841.74

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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.