Home / 101,088.18-139,501.28-55,768.98

Finding the Fourth Proportional to 101,088.18, 139,501.28 and 55,768.98

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Solution

The fourth proportional to 101,088.18, 139,501.28 and 55,768.98 is: 76,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,088.18 : 139,501.28 = 55,768.98 : x
  2. Step 2: Convert to fraction form
    101,088.18/139,501.28 = 55,768.98/x
  3. Step 3: Cross multiply
    101,088.18x = 139,501.28 × 55,768.98
  4. Step 4: Simplify right side
    101,088.18x = 7,779,844,094.29
  5. Step 5: Solve for x
    x = 7,779,844,094.29/101,088.18
  6. Step 6: Final answer
    x = 76,960.97

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1.5x scale

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.