Home / 191,009.04-286,445.52-72,712.32

Finding the Fourth Proportional to 191,009.04, 286,445.52 and 72,712.32

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Solution

The fourth proportional to 191,009.04, 286,445.52 and 72,712.32 is: 109,042.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,009.04 : 286,445.52 = 72,712.32 : x
  2. Step 2: Convert to fraction form
    191,009.04/286,445.52 = 72,712.32/x
  3. Step 3: Cross multiply
    191,009.04x = 286,445.52 × 72,712.32
  4. Step 4: Simplify right side
    191,009.04x = 20,828,118,312.81
  5. Step 5: Solve for x
    x = 20,828,118,312.81/191,009.04
  6. Step 6: Final answer
    x = 109,042.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.