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Finding the Fourth Proportional to 130,126, 179,574 and 70,510

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Solution

The fourth proportional to 130,126, 179,574 and 70,510 is: 97,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,126 : 179,574 = 70,510 : x
  2. Step 2: Convert to fraction form
    130,126/179,574 = 70,510/x
  3. Step 3: Cross multiply
    130,126x = 179,574 × 70,510
  4. Step 4: Simplify right side
    130,126x = 12,661,762,740
  5. Step 5: Solve for x
    x = 12,661,762,740/130,126
  6. Step 6: Final answer
    x = 97,303.87

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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.