Home / 137,225.34-189,373.54-76,802.64

Finding the Fourth Proportional to 137,225.34, 189,373.54 and 76,802.64

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Solution

The fourth proportional to 137,225.34, 189,373.54 and 76,802.64 is: 105,989.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,225.34 : 189,373.54 = 76,802.64 : x
  2. Step 2: Convert to fraction form
    137,225.34/189,373.54 = 76,802.64/x
  3. Step 3: Cross multiply
    137,225.34x = 189,373.54 × 76,802.64
  4. Step 4: Simplify right side
    137,225.34x = 14,544,387,818.15
  5. Step 5: Solve for x
    x = 14,544,387,818.15/137,225.34
  6. Step 6: Final answer
    x = 105,989.08

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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.