Home / 115,878.18-159,925.35-70,582.68

Finding the Fourth Proportional to 115,878.18, 159,925.35 and 70,582.68

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Solution

The fourth proportional to 115,878.18, 159,925.35 and 70,582.68 is: 97,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,878.18 : 159,925.35 = 70,582.68 : x
  2. Step 2: Convert to fraction form
    115,878.18/159,925.35 = 70,582.68/x
  3. Step 3: Cross multiply
    115,878.18x = 159,925.35 × 70,582.68
  4. Step 4: Simplify right side
    115,878.18x = 11,287,959,802.94
  5. Step 5: Solve for x
    x = 11,287,959,802.94/115,878.18
  6. Step 6: Final answer
    x = 97,412.30

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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.