Home / 145,880.02-201,314.46-78,812.02

Finding the Fourth Proportional to 145,880.02, 201,314.46 and 78,812.02

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Solution

The fourth proportional to 145,880.02, 201,314.46 and 78,812.02 is: 108,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,880.02 : 201,314.46 = 78,812.02 : x
  2. Step 2: Convert to fraction form
    145,880.02/201,314.46 = 78,812.02/x
  3. Step 3: Cross multiply
    145,880.02x = 201,314.46 × 78,812.02
  4. Step 4: Simplify right side
    145,880.02x = 15,865,999,247.81
  5. Step 5: Solve for x
    x = 15,865,999,247.81/145,880.02
  6. Step 6: Final answer
    x = 108,760.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.