Home / 101,746.32-140,409.93-56,431.23

Finding the Fourth Proportional to 101,746.32, 140,409.93 and 56,431.23

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Solution

The fourth proportional to 101,746.32, 140,409.93 and 56,431.23 is: 77,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,746.32 : 140,409.93 = 56,431.23 : x
  2. Step 2: Convert to fraction form
    101,746.32/140,409.93 = 56,431.23/x
  3. Step 3: Cross multiply
    101,746.32x = 140,409.93 × 56,431.23
  4. Step 4: Simplify right side
    101,746.32x = 7,923,505,054.11
  5. Step 5: Solve for x
    x = 7,923,505,054.11/101,746.32
  6. Step 6: Final answer
    x = 77,875.10

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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.