Home / 112,680.76-168,970.02-42,510.28

Finding the Fourth Proportional to 112,680.76, 168,970.02 and 42,510.28

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Solution

The fourth proportional to 112,680.76, 168,970.02 and 42,510.28 is: 63,746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,680.76 : 168,970.02 = 42,510.28 : x
  2. Step 2: Convert to fraction form
    112,680.76/168,970.02 = 42,510.28/x
  3. Step 3: Cross multiply
    112,680.76x = 168,970.02 × 42,510.28
  4. Step 4: Simplify right side
    112,680.76x = 7,182,962,861.81
  5. Step 5: Solve for x
    x = 7,182,962,861.81/112,680.76
  6. Step 6: Final answer
    x = 63,746.13

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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.