Home / 140,158.77-210,090.51-69,890.46

Finding the Fourth Proportional to 140,158.77, 210,090.51 and 69,890.46

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Solution

The fourth proportional to 140,158.77, 210,090.51 and 69,890.46 is: 104,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,158.77 : 210,090.51 = 69,890.46 : x
  2. Step 2: Convert to fraction form
    140,158.77/210,090.51 = 69,890.46/x
  3. Step 3: Cross multiply
    140,158.77x = 210,090.51 × 69,890.46
  4. Step 4: Simplify right side
    140,158.77x = 14,683,322,779.45
  5. Step 5: Solve for x
    x = 14,683,322,779.45/140,158.77
  6. Step 6: Final answer
    x = 104,762.07

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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.