Home / 145,044.79-200,158.64-80,510.23

Finding the Fourth Proportional to 145,044.79, 200,158.64 and 80,510.23

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Solution

The fourth proportional to 145,044.79, 200,158.64 and 80,510.23 is: 111,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,044.79 : 200,158.64 = 80,510.23 : x
  2. Step 2: Convert to fraction form
    145,044.79/200,158.64 = 80,510.23/x
  3. Step 3: Cross multiply
    145,044.79x = 200,158.64 × 80,510.23
  4. Step 4: Simplify right side
    145,044.79x = 16,114,817,740.34
  5. Step 5: Solve for x
    x = 16,114,817,740.34/145,044.79
  6. Step 6: Final answer
    x = 111,102.36

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1.5x scale

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.