Home / 156,875.20-235,312.80-145,803.52

Finding the Fourth Proportional to 156,875.20, 235,312.80 and 145,803.52

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Solution

The fourth proportional to 156,875.20, 235,312.80 and 145,803.52 is: 218,705.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,875.20 : 235,312.80 = 145,803.52 : x
  2. Step 2: Convert to fraction form
    156,875.20/235,312.80 = 145,803.52/x
  3. Step 3: Cross multiply
    156,875.20x = 235,312.80 × 145,803.52
  4. Step 4: Simplify right side
    156,875.20x = 34,309,434,541.06
  5. Step 5: Solve for x
    x = 34,309,434,541.06/156,875.20
  6. Step 6: Final answer
    x = 218,705.28

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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.