Home / 140,465.13-193,842.63-76,802.93

Finding the Fourth Proportional to 140,465.13, 193,842.63 and 76,802.93

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Solution

The fourth proportional to 140,465.13, 193,842.63 and 76,802.93 is: 105,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,465.13 : 193,842.63 = 76,802.93 : x
  2. Step 2: Convert to fraction form
    140,465.13/193,842.63 = 76,802.93/x
  3. Step 3: Cross multiply
    140,465.13x = 193,842.63 × 76,802.93
  4. Step 4: Simplify right side
    140,465.13x = 14,887,681,558.89
  5. Step 5: Solve for x
    x = 14,887,681,558.89/140,465.13
  6. Step 6: Final answer
    x = 105,988.45

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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.