Home / 210,384.32-315,592.98-70,142.94

Finding the Fourth Proportional to 210,384.32, 315,592.98 and 70,142.94

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Solution

The fourth proportional to 210,384.32, 315,592.98 and 70,142.94 is: 105,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,384.32 : 315,592.98 = 70,142.94 : x
  2. Step 2: Convert to fraction form
    210,384.32/315,592.98 = 70,142.94/x
  3. Step 3: Cross multiply
    210,384.32x = 315,592.98 × 70,142.94
  4. Step 4: Simplify right side
    210,384.32x = 22,136,619,460.56
  5. Step 5: Solve for x
    x = 22,136,619,460.56/210,384.32
  6. Step 6: Final answer
    x = 105,219.91

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1.5x scale

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.