Home / 210,252.36-315,428.74-70,012.20

Finding the Fourth Proportional to 210,252.36, 315,428.74 and 70,012.20

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Solution

The fourth proportional to 210,252.36, 315,428.74 and 70,012.20 is: 105,035.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,252.36 : 315,428.74 = 70,012.20 : x
  2. Step 2: Convert to fraction form
    210,252.36/315,428.74 = 70,012.20/x
  3. Step 3: Cross multiply
    210,252.36x = 315,428.74 × 70,012.20
  4. Step 4: Simplify right side
    210,252.36x = 22,083,860,030.63
  5. Step 5: Solve for x
    x = 22,083,860,030.63/210,252.36
  6. Step 6: Final answer
    x = 105,035.02

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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.