Home / 103,803.16-143,248.36-56,056.50

Finding the Fourth Proportional to 103,803.16, 143,248.36 and 56,056.50

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Solution

The fourth proportional to 103,803.16, 143,248.36 and 56,056.50 is: 77,357.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,803.16 : 143,248.36 = 56,056.50 : x
  2. Step 2: Convert to fraction form
    103,803.16/143,248.36 = 56,056.50/x
  3. Step 3: Cross multiply
    103,803.16x = 143,248.36 × 56,056.50
  4. Step 4: Simplify right side
    103,803.16x = 8,030,001,692.34
  5. Step 5: Solve for x
    x = 8,030,001,692.34/103,803.16
  6. Step 6: Final answer
    x = 77,357.97

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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.