Home / 121,402.47-167,547.66-70,430.79

Finding the Fourth Proportional to 121,402.47, 167,547.66 and 70,430.79

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Solution

The fourth proportional to 121,402.47, 167,547.66 and 70,430.79 is: 97,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,402.47 : 167,547.66 = 70,430.79 : x
  2. Step 2: Convert to fraction form
    121,402.47/167,547.66 = 70,430.79/x
  3. Step 3: Cross multiply
    121,402.47x = 167,547.66 × 70,430.79
  4. Step 4: Simplify right side
    121,402.47x = 11,800,514,056.45
  5. Step 5: Solve for x
    x = 11,800,514,056.45/121,402.47
  6. Step 6: Final answer
    x = 97,201.60

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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.