Home / 156,985.40-235,477.02-51,812.84

Finding the Fourth Proportional to 156,985.40, 235,477.02 and 51,812.84

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Solution

The fourth proportional to 156,985.40, 235,477.02 and 51,812.84 is: 77,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.40 : 235,477.02 = 51,812.84 : x
  2. Step 2: Convert to fraction form
    156,985.40/235,477.02 = 51,812.84/x
  3. Step 3: Cross multiply
    156,985.40x = 235,477.02 × 51,812.84
  4. Step 4: Simplify right side
    156,985.40x = 12,200,733,160.94
  5. Step 5: Solve for x
    x = 12,200,733,160.94/156,985.40
  6. Step 6: Final answer
    x = 77,718.90

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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.