Home / 157,077.10-235,615.65-90,646.98

Finding the Fourth Proportional to 157,077.10, 235,615.65 and 90,646.98

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Solution

The fourth proportional to 157,077.10, 235,615.65 and 90,646.98 is: 135,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,077.10 : 235,615.65 = 90,646.98 : x
  2. Step 2: Convert to fraction form
    157,077.10/235,615.65 = 90,646.98/x
  3. Step 3: Cross multiply
    157,077.10x = 235,615.65 × 90,646.98
  4. Step 4: Simplify right side
    157,077.10x = 21,357,847,113.24
  5. Step 5: Solve for x
    x = 21,357,847,113.24/157,077.10
  6. Step 6: Final answer
    x = 135,970.47

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1.5x scale

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.