Home / 210,000.23-315,075.52-90,006.83

Finding the Fourth Proportional to 210,000.23, 315,075.52 and 90,006.83

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Solution

The fourth proportional to 210,000.23, 315,075.52 and 90,006.83 is: 135,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,000.23 : 315,075.52 = 90,006.83 : x
  2. Step 2: Convert to fraction form
    210,000.23/315,075.52 = 90,006.83/x
  3. Step 3: Cross multiply
    210,000.23x = 315,075.52 × 90,006.83
  4. Step 4: Simplify right side
    210,000.23x = 28,358,948,484.47
  5. Step 5: Solve for x
    x = 28,358,948,484.47/210,000.23
  6. Step 6: Final answer
    x = 135,042.46

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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.