Home / 156,981.23-235,480.02-51,808.40

Finding the Fourth Proportional to 156,981.23, 235,480.02 and 51,808.40

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Solution

The fourth proportional to 156,981.23, 235,480.02 and 51,808.40 is: 77,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.23 : 235,480.02 = 51,808.40 : x
  2. Step 2: Convert to fraction form
    156,981.23/235,480.02 = 51,808.40/x
  3. Step 3: Cross multiply
    156,981.23x = 235,480.02 × 51,808.40
  4. Step 4: Simplify right side
    156,981.23x = 12,199,843,068.17
  5. Step 5: Solve for x
    x = 12,199,843,068.17/156,981.23
  6. Step 6: Final answer
    x = 77,715.30

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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.