Home / 98,615.86-136,056.64-56,144.32

Finding the Fourth Proportional to 98,615.86, 136,056.64 and 56,144.32

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Solution

The fourth proportional to 98,615.86, 136,056.64 and 56,144.32 is: 77,460.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,615.86 : 136,056.64 = 56,144.32 : x
  2. Step 2: Convert to fraction form
    98,615.86/136,056.64 = 56,144.32/x
  3. Step 3: Cross multiply
    98,615.86x = 136,056.64 × 56,144.32
  4. Step 4: Simplify right side
    98,615.86x = 7,638,807,534.28
  5. Step 5: Solve for x
    x = 7,638,807,534.28/98,615.86
  6. Step 6: Final answer
    x = 77,460.23

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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.