Home / 156,985.40-235,478.10-155,509.18

Finding the Fourth Proportional to 156,985.40, 235,478.10 and 155,509.18

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Solution

The fourth proportional to 156,985.40, 235,478.10 and 155,509.18 is: 233,263.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.40 : 235,478.10 = 155,509.18 : x
  2. Step 2: Convert to fraction form
    156,985.40/235,478.10 = 155,509.18/x
  3. Step 3: Cross multiply
    156,985.40x = 235,478.10 × 155,509.18
  4. Step 4: Simplify right side
    156,985.40x = 36,619,006,238.96
  5. Step 5: Solve for x
    x = 36,619,006,238.96/156,985.40
  6. Step 6: Final answer
    x = 233,263.77

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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.